Model
Fi Car Audio SP4 V2 18 D1
Rating
DIAM
18"
FS(Hz)
24.7
VAS(l)
153.7
QTS
0.55
PWR(W)
7000
SPL(dB)
87.7
IMP(Ohm)
1x2
avb
PROD
Some parameters have a deviation from parameters associated with them. Please, look at the exclamation marks to get advice.
Thiele-Small Parameters
Fs(Hz)
24.7
Vas(l)
153.7
Qts
0.55
Qms
7.45
Qes
0.6
Bl(Tm)
13.7
Mms(gr)
555
Cms(mm/N)
0.075
Rms(kg/s)
11.561
Le(mH)
0
Re(Ohm)
0.7
Sd(sq.mm)
121000
Vd(l)
3.993
X-max(mm)
33
X-mech(mm)
0
General Parameters
Diameter (inch)
18
Max Power(W.)
7000
RMS Power(W.)
3500
Number of Coils
2
Impedance Z-Nom(Ohm)
1
Reference efficiency η0(%)
0.37
Sensitivity(dB) 1-W
87.7
Sensitivity(dB) 2.8-V
98.6
Mounting Information
Speaker Displacement (l)
7.4
Total Diameter (mm)
470
Cutout Diameter (mm)
425
Mounting Depth (mm)
299
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, BP4
